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2002 Nomad model 2955 power converter Brian 3-15-13  
I need to figure out how to trouble shoot my converter. My trailer works great when plugged in to city electric, but won't convert back to battery during travel or dry camping. Any help would be appreciated.
Re: 2002 Nomad model 2955 power converter Keith 3-17-13  
Hi Brian, Check the 30 amp fuses on the converter itself. If blown the battery was hooked up backward at sometime, replace them. If OK, this sounds like a dead or weak battery problem. When you are unplugged you are drawing off your battery. The converter is bad if it's not handling the 12VDC requirements when plugged in to 120VAC, hence draining the battery. Check the battery volts when unplugged, should be 12VDC to 14. When plugged in to 120VAC check for approx. 13.6VDC at the battery, if less than 12V - 14 or the same as when unplugged, say it was 11.5V, your converter isn't working. You can have 12VDC at the battery when unplugged and not have any AMP's, so a load test on the battery is also a good idea. It's easier to do the troubleshooting than to write it. Hope this helps. Good luck
Re: 2002 Nomad model 2955 power converter BUBBA THE BUS TECH 3-18-13  
Works off converter not battery:

Test Battery voltage 12 + but not the same as converter output means battery disconected from unit, find blown breaker or fuse. Bad conection etc. The faulty breaker or fuse will be at the end of the battery positive cable and that will be within 3 feet or so of the battery.

If the battery voltage is zero try a fresh battery

If you plug into 110 volts and the lights work measure the voltage at the lights, 13 volts or more with lights on means converter works correct. Then measure battery voltage, should be the same. If not check for wiring issues.
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